He later joined the cast of All That in its fourth season. Tamberelli's characters and sketches included "Jack Campbell: Fat Cop" as Jack Campbell, Hairy Spice, and "Cheeseburger Doyle: Private Eye" as Cheeseburger Doyle. When Lori Beth Denberg left the show after his first season, he succeeded her as host of "Vital Information". Being a cast member of All That enabled him to be a frequent panelist on the game show Figure It Out, and became one of the most memorable. He would become known for his famed "head flip," where he would flip his head back after getting slimed to cover the audience in slime.